The Equation of Number the Total Internal of Reflection Angles Occur in Optical Fiber

This studding is deduced a mathematical model is determined the number of total internal reflection angles occur in optical fiber is depend on the many parameters (optical fiber length, diameter a core, reflection angle). The number of total internal angles is direct proportionality with optical fiber length while is indirect proportionality with optical fiber diameter a core and the tan function for reflection angle. The mathematical model is useful at design the optical fiber for less the attenuation.